In that bout, Holm, a big underdog, controlled her aggressive foe with superior striking and footwork, defending all of Rousey's takedown attempts. She would go on to knockout Rousey with a head kick in Round 2.

A former professional boxer and relative newcomer to UFC, there's a lot of confusion about her record and stats.

A First: Defeated Rhonda Rousey by a second-round knockout to win the UFC Women's Bantamweight Title in Melbourne, Australia, on November 14, 2015 to become first person — man or woman — to win world titles in boxing and the UFC.

Multiple Titles: Held multiple world titles in boxing in the super lightweight and welterweight divisions.

Takedowns: Holm yet to be taken down in any of her three UFC bouts. And according to the stats service FightMetric, Holm has spent nearly 96.8 percent of those matches in the standing position, 3% atop her opponent and 0.2% beneath her foe.

KO Power: As a boxer, Holm wasn't known for her punching power. A hit-and-move fighter, she outclassed and outworked more than 3/4 of her opponents and cruised to a points verdict. As a mixed martial artists, however, she's demonstrated leg power by knocking out 7 of 10 of her opponents with kicks.